Ethereum · Vitalik Buterin · Decrypt
Ethereum Test Network Raises Block Limit to Over 3x Its Current Capacity
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Ethereum's Sepolia test network activated the Glamsterdam upgrade on October 6 and began producing blocks with a gas limit of nearly 200 million, more than three times the 60 million that Ethereum's main network allows.
Key facts
- The 200 million figure was scheduled in a commit tied to epoch 353,024, a 6.4-minute time marker in Ethereum's calendar that began at 13:53:36 UTC
- One of those steps was a 52%-to-48% validator vote in February 2025 that moved the limit from 30 million to 32 million
- Ethereum's Sepolia test network activated the Glamsterdam upgrade on October 6 and began producing blocks with a gas limit of nearly 200 million, more than three times the 60 million that Ethereum's
- The announcement sets no date for Hoodi, another public testnet, and schedules no mainnet upgrade, so Ethereum's main network keeps its 60 million gas limit for now
Summary
Ethereum's Sepolia testnet activated Glamsterdam on October 6 at epoch 353,024, with a block gas limit of nearly 200 million, more than three times mainnet's 60 million. Sepolia blocks 11,872,013 through 11,872,037 used between 47.1 million and 85.9 million gas, roughly 24% to 43% of the limit. The announcement sets no date for the Hoodi testnet and schedules no mainnet upgrade, so mainnet's limit stays at 60 million for now. The 200 million figure was scheduled in a commit tied to epoch 353,024, a 6.4-minute time marker in Ethereum's calendar that began at 13:53:36 UTC.